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A045111 Numbers whose base-4 representation contains no 1's and exactly two 3's. 0
15, 47, 51, 59, 60, 62, 143, 175, 179, 187, 188, 190, 195, 203, 204, 206, 227, 235, 236, 238, 240, 242, 248, 250, 527, 559, 563, 571, 572, 574, 655, 687, 691, 699, 700, 702, 707, 715, 716, 718, 739, 747, 748, 750, 752, 754, 760 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[1000], DigitCount[#, 4, 1]==0&&DigitCount[#, 4, 3]==2&] (* Harvey P. Dale, May 06 2013 *)
CROSSREFS
Cf. A007090.
Sequence in context: A042007 A269013 A041438 * A031451 A105572 A143031
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified April 14 12:23 EDT 2024. Contains 371661 sequences. (Running on oeis4.)